Poisoning by cinchona, quinine, or quinidine; characterized by tinnitus, headache, deafness, and occasionally, anaphylactoid shock. SYN: quininism.
* * *
cin·cho·nism 'siŋ-kə-.niz-əm, 'sin-chə- n a disorder due to excessive or prolonged use of cinchona or its alkaloids and marked by temporary deafness, ringing in the ears, headache, dizziness, and rash
* * *
n.
poisoning caused by an overdose of cinchona or the alkaloids quinine, quinidine, or cinchonine derived from it. The symptoms are commonly ringing noises in the ears, dizziness, blurring of vision (and sometimes complete blindness), rashes, fever, and low blood pressure. Treatment with diuretic increases the rate of excretion of the toxic compounds from the body.
* * *
cin·cho·nism (sinґko-niz″əm) poisoning by the injudicious use of cinchona bark or its alkaloids, characterized by nausea, vomiting, headache, tinnitus, deafness, symptoms of cerebral congestion, vertigo, and visual disturbances.Medical dictionary. 2011.